实验成绩计算

src/Jiaowu.Api/Controllers/ExperimentGradesController.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using System.Data;
 using Jiaowu.Api.Domain.Academic;
 using Jiaowu.Api.Domain.Identity;
 using Jiaowu.Api.Infrastructure.Auth;
@@ -138,7 +139,7 @@ public sealed class ExperimentGradesController(
         if (student is null)
             return ConflictProblem("当前账号未关联有效学生档案。");
 
-        return Ok(await db.ExperimentGradeRecords.AsNoTracking()
+        var results = await db.ExperimentGradeRecords.AsNoTracking()
             .Where(x =>
                 x.StudentId == student.Id &&
                 x.ExperimentGradeSheet!.Status ==
@@ -157,12 +158,19 @@ public sealed class ExperimentGradesController(
                 ProjectName =
                     x.ExperimentGradeSheet.ExperimentProject.Name,
                 x.ExperimentGradeSheet.ExperimentProject.ArrangementMode,
+                TeachingTaskId = x.ExperimentGradeSheet.ExperimentProject
+                    .TeachingTaskId,
+                AcademicTermId = x.ExperimentGradeSheet.ExperimentProject
+                    .TeachingTask!.AcademicTermId,
+                TaskNumber = x.ExperimentGradeSheet.ExperimentProject
+                    .TeachingTask.TaskNumber,
                 CourseCode = x.ExperimentGradeSheet.ExperimentProject
                     .TeachingTask!.Course!.Code,
                 CourseName = x.ExperimentGradeSheet.ExperimentProject
                     .TeachingTask.Course.Name,
                 TermName = x.ExperimentGradeSheet.ExperimentProject
                     .TeachingTask.AcademicTerm!.Name,
+                x.ExperimentGradeSheet.ContributionWeight,
                 x.ExperimentGradeSheet.PassScore,
                 x.ParticipationStatus,
                 x.TotalScore,
@@ -187,7 +195,40 @@ public sealed class ExperimentGradesController(
                     }),
                 x.ExperimentGradeSheet.PublishedAt
             })
-            .ToListAsync(cancellationToken));
+            .ToListAsync(cancellationToken);
+        var taskIds = results.Select(x => x.TeachingTaskId).Distinct().ToArray();
+        var aggregates = await db.ExperimentCourseGrades.AsNoTracking()
+            .Where(x =>
+                x.StudentId == student.Id &&
+                taskIds.Contains(x.TeachingTaskId))
+            .ToDictionaryAsync(x => x.TeachingTaskId, cancellationToken);
+        var courses = results
+            .GroupBy(x => x.TeachingTaskId)
+            .Select(group =>
+            {
+                var first = group.First();
+                aggregates.TryGetValue(group.Key, out var aggregate);
+                return new
+                {
+                    TeachingTaskId = group.Key,
+                    first.AcademicTermId,
+                    first.TermName,
+                    first.TaskNumber,
+                    first.CourseCode,
+                    first.CourseName,
+                    ExperimentCourseScore = aggregate?.WeightedAverageScore,
+                    PublishedProjectCount =
+                        aggregate?.PublishedProjectCount ?? group.Count(),
+                    TotalWeight = aggregate?.TotalWeight ??
+                        group.Sum(x => x.ContributionWeight),
+                    RefreshedAt = aggregate?.RefreshedAt,
+                    Projects = group.OrderBy(x => x.ProjectCode).ToList()
+                };
+            })
+            .OrderByDescending(x => x.Projects.Max(project => project.PublishedAt))
+            .ThenBy(x => x.CourseCode)
+            .ToList();
+        return Ok(courses);
     }
 
     [HttpPost("sheets")]
@@ -744,7 +785,15 @@ public sealed class ExperimentGradesController(
 
         sheet.Status = ExperimentGradeSheetStatus.Published;
         sheet.PublishedAt = DateTime.UtcNow;
-        await db.SaveChangesAsync(cancellationToken);
+        await db.ExecuteInRetriableTransactionAsync(async transaction =>
+        {
+            await db.SaveChangesAsync(cancellationToken);
+            await ExperimentGradeAggregationService.RefreshTeachingTaskAsync(
+                db,
+                sheet.ExperimentProject!.TeachingTaskId,
+                cancellationToken);
+            await transaction.CommitAsync(cancellationToken);
+        }, cancellationToken, IsolationLevel.Serializable);
         var userIds = await db.ExperimentGradeRecords
             .Where(x => x.ExperimentGradeSheetId == sheet.Id)
             .Select(x => x.Student!.UserId)